
If you do want to update overnight your phone must be connected to power, Wi-Fi and it must be powered on and locked overnight - if it doesn't update go back to doing it manually so you can see any error messages.If you are not planning to update automatically overnight you should turn this option off, as it will only update when the phone is plugged in, connected to Wi-Fi and locked.You must have at least 6 GB of free storage (for iOS 14 or later), and more is better.The battery state of charge must be above 50%.The phone can not be in Low Power mode (how to tell: The battery icon will be yellow in low power mode).You must have a cellular network connection with cellular data enabled so the account can be verified after downloading the update.You cannot update using an iPhone personal hotspot.You must have a fast Wi-Fi connection you cannot update over cellular data unless you have a phone that supports 5G (series 12, 13, 14 and SE 3rd edition) and you have a 5G connection.If you have a problem updating with your computer (rather than over the air) the first place to go is→ If you see an error when you update or restore your iPhone, iPad, or iPod - Apple Supportįor over-the-air updates, here are the conditions that must be met to update iOS: If your phone is compatible, for most users, just go to Settings/General/Software Update or follow Apple's update support article→ Update your iPhone, iPad, or iPod touch - Apple Support iPhone 4S: You can update only to 9.3.6.iPhone 5C: You can update only to 10.3.3.

iPhone 5: You can update only to 10.3.4.iPhone 5S or 6: You cannot update to iOS 13 or higher you can update only to iOS 12.5.7.Any iPhone series 6S and 7, and SE 1st generation: You can update to 15.7.7.iPhone 8 or newer, including SE 2nd and 3rd editions, you can update to the latest “dot” version of iOS 16.5.1.STOP: Before doing anything that might cause data loss, make a backup of your iOS device to either iCloud, your computer, or both for extra security-> How to back up your iPhone, iPad, and iPod touch - Apple Support
